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Finding the Fourth Proportional to 851,654.56, 1,276,346.56 and 402,494.56

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Solution

The fourth proportional to 851,654.56, 1,276,346.56 and 402,494.56 is: 603,205.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,654.56 : 1,276,346.56 = 402,494.56 : x
  2. Step 2: Convert to fraction form
    851,654.56/1,276,346.56 = 402,494.56/x
  3. Step 3: Cross multiply
    851,654.56x = 1,276,346.56 × 402,494.56
  4. Step 4: Simplify right side
    851,654.56x = 513,722,547,074.71
  5. Step 5: Solve for x
    x = 513,722,547,074.71/851,654.56
  6. Step 6: Final answer
    x = 603,205.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.